What, they didn't want to go for a Valentine's-themed name like Romeo? Fox doesn't seem like the mushy type, though, so maybe not.

In November, Fox opened up about how "rough" her second pregnancy was. "I’ve had rough first trimesters," Fox told ABC News. "But once you get into the second, it’s fine after that."

This is the second boy for the couple, who welcomed their first son, Noah Shannon, now 15-months-old, in September 2012. This is Green's third son, who also has Kassius Lijah, 11-years-old, with his ex-girlfriend, Vanessa Marcil.

The Transformers actress also told People how Noah was adjusting to the idea of being a big brother.

"I think [Noah is] going to be an amazing big brother, with time," Fox says. "I think he has an idea, but I don’t think he understands that a baby will be living with us all of the time. That will be an adjustment. He loves to be the center of attention and I also think he is a really sensitive child. I think that he’s going to be a nurturer."